The extrusion action of the FastCArve app is very unpredictable: If we move the mouse by even a little, the extrusion moves a lot. Even the rate of extrusion changes for a given amount of mouse movement. Sometimes it extrudes in reverse direction!

In short, it behaves almost like scale operation, rather than like extrusion operation.

In main Blender, the amount of extrusion is exactly same as the amount by which the mouse is moved. Secondly, the initial position of the mouse pointer does not affect the rate of extrusion.

Desired: The extrusion in the addon should match the main Blender's extrusion.

[Edit] I just discovered that the extrusion distance varies when we move the mouse horizontally on the screen! Moving the mouse left extrudes in one direction, and moving the mouse to right extrudes in the other direction. This is totally unintuitive. In the main Blender, we move the mouse along the direction of extrusion, which is far more intuitive.